Concentrations of polycyclic aromatic hydrocarbons in Antarctic snow polluted by research activities using snow mobiles and diesel electric generators

• DOI: 10.5331/bgr.19a02
• Publication Date: 2019-12-20T22:05:45Z
• Authors: Oanh PHAM Kim; Kazushi NORO; Yoshie NABESHIMA; Tatsuya TANIGUCHI; Yusuke FUJII; Miho ARAI; Toshimitsu SAKURAI; Kenji KAWAMURA; Hideaki MOTOYAMA; Hien TO Thi; Norimichi TAKENAKA
• Keywords: 01 natural sciences; 0105 earth and related environmental sciences

The polycyclic aromatic hydrocarbons (PAHs) in snow were measured eastern Dronning Maud Land, East Antarctica. sources of these PAHs the mobiles and diesel electric generators used for scientific research from 29th December 2015 to 4th February 2016. Most PAH concentrations low before campaign (lower than detection limit or quantification limit), then increased due activities, finally decreased a level probably because strong blizzard winds. In addition, photolysis polluted samples under Antarctic conditions was investigated. by collected after irradiation sunlight (11 days); however, decrease concentration not observed. It concluded that main sink snow, but occurrence blizzard/drifting concentration. this paper, preservation method measure correctly also evaluated. To stabilize hexane had be added sample. Even if sample kept freezer, evaporated without hexane.